The pair sparked rumours they were doing more than planning a duet when they were spotted leaving Los Angeles hotspot the Chateau Marmont together Wednesday night.

“I don’t think either of them are trying for anything serious right now. She’s not talking like he’s ‘The One,'” the Perry pal told People. The couple has allegedly been out together a few times. “She’s comfortable around guys who understand the craziness of that world, which he definitely does.”

If the rumours are true, Perry would be the latest in a series of high-profile Hollywood starlets whose body the 34-year-old Mayer has found to be a wonderland. Jennifer Aniston, Jessica Simpson and Taylor Swift have all been linked to the guitarist.

Perry, meanwhile, has kept her romantic life casual since she divorced Russell Brand earlier this year, most recently “hanging” with Florence + the Machine guitarist Robert Ackroyd.

In Ellemagazine’s September cover story, Perry explained that she has not given up on love, telling Elle that she is “a woman who likes to be courted — strongly.”

As for finding “the one,” again, Perry pulled a Bieber. “Never say never” she told the magazine. “I’ll let love take the lead on that.”